Climate change’s ripples reach every corner of the globe, but nowhere is their geopolitical impact more pronounced than in China’s relations with the United States. This is especially the case as the undisputed security risks posed to both nations by climate change become intertwined with broader arcs of political, economic, and military competition on both sides.

Northern Central America is experiencing a confluence of insecurity and migration challenges that are increasingly intertwined with climate change. What are the contours of this emergent convergence—and how can responses be developed and implemented more effectively?

The Horn of Africa now faces an unprecedented drought, with conditions not seen in the last 40 years. The implications of this looming catastrophe reach beyond the most recent severe drought periods in the region, which occurred in 2010 and 2011 and again in 2016 and 2017.

As of November 2022, over 36 million people in the Horn were affected by drought, including 24.1 million in Ethiopia, 7.8 million in Somalia, and 4.2 million in Kenya. More than 20 million children in Djibouti, Ethiopia, Kenya, and Somalia need immediate water and food assistance. In addition, nearly 1 million pregnant and lactating women are acutely malnourished. Since mid-2021, more than 9.5 million livestock have perished in the region due to a lack of water, starvation, and disease.

On February 25, Nigeria will hold its presidential election. The stakes of this ballot could not be any higher—especially for the climate. Climate change is an existential and current reality in Nigeria, and the coming decade will be crucial to meet the nation’s sustainable development goals. It will take political will to make climate justice a reality, and Nigerians now have the opportunity to choose leaders who will either make or mar the action to address this threat.

In a time of increasing urgency and regulatory restraint in U.S. climate policy, state-level climate work has been critical. States such as California, Louisiana, and Washington have taken the absence of federal policy as an opening to innovate, and responded thoughtfully and creatively to the challenge.

As the COVID-19 pandemic gripped the world in late 2019 and early 2020, the world’s great hope was in the rapid development and deployment of vaccines. Global public health organizations hoped to seize upon the crisis to advance international cooperative efforts to fight COVID-19, and the promise of advanced economies embracing “vaccine diplomacy” to get shots into arms around the planet was a key element in this strategy.

As Russia’s war in Ukraine continues and nations are returning to behaviors best explained by realism, we are wrestling with these trends’ longer-term implications on water diplomacy. States are becoming inward-looking and prioritizing national sovereignty. Debates about water and climate are resurfacing, and we should better understand how hard power and inward-looking approaches can impact water diplomacy and cooperation. To inform policymakers about power sensitivities and power games played in diplomacy, water diplomats must rethink the future of water security and peace. They should reexamine leadership styles, cultural sensitivities, and knowledge exchange from the lens of realism.